粒科线虫中国新纪录种(侧尾腺纲,垫刃目)  

A NEW RECORD SPECIES OF ANGUINIDAE FROM CHINA(SECERNENTEA,TYLENCHIDA)

作　　者：颜秀娟[1] 段玉玺[1] 陈立杰[1] 

机构地区：[1]沈阳农业大学植物保护学院线虫学研究室,沈阳110161

出　　处：《动物分类学报》2006年第3期544-546,共3页Acta Zootaxonomica Sinica

摘　　要：报道了粒科线虫的1个新纪录种：细小茎线虫Ditylenchus exilis Brzeski，1983。其鉴定特征为雌虫身体在近阴门处直或微弯；环纹宽度不规则；头连续；侧区4条侧线；口针短，锥部大约为口针长度的1／3，基球圆；中食道球梭形或微圆；后阴子宫囊为阴门处虫体直径的0．8～1．2倍；尾细，端圆，与肛阴距等长。雄虫与雌虫体形相似，交合伞钝齿形，占尾长的29％～35％。A new record species： Ditylenchus exilis of Anguinidae from China had been reported and described in this paper. It was characterized： body straight or slightly bent near vulva when relaxed; annules often irregular in width; head continuous with body; lateral field with four incisures; stylet delicate, conus about one-third of stylet length, knobs rounded;median bulb fusiform or slightly rounded; posterior part of uterine sac 0.8-1.2 vulval body width long; tail narrows gradually to a rounded tip. Tail length about equal to vulval-anus distance. Male similar to female, except for sexual dimorphism. Caudal alae weakly crenated, occupy 29%-35%.

关 键 词：垫刃目 粒科 茎属 新纪录种 中国 

分 类 号：Q959.17[生物学—动物学]